548666845 has 8 divisors (see below), whose sum is σ = 664919640. Its totient is φ = 434587200.

The previous prime is 548666813. The next prime is 548666849.

548666845 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 345290724 + 203376121 = 18582^2 + 14261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 548666845 - 2⁵ = 548666813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 548666792 and 548666801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548666849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542730 + ... + 543739.

It is an arithmetic number, because the mean of its divisors is an integer number (83114955).

Almost surely, 2^548666845 is an apocalyptic number.

It is an amenable number.

548666845 is a deficient number, since it is larger than the sum of its proper divisors (116252795).

548666845 is a wasteful number, since it uses less digits than its factorization.

548666845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086575.

The product of its digits is 5529600, while the sum is 52.

The square root of 548666845 is about 23423.6385943773. The cubic root of 548666845 is about 818.6587457684.

The spelling of 548666845 in words is "five hundred forty-eight million, six hundred sixty-six thousand, eight hundred forty-five".